GROCO Backing Block f/2" 2-1/2" Seacocks [BB-3]

Description

Backing Block for 2" & 2-1/2" Seacocks

Features:

  • Each size fits multiple seacock sizes
  • Press threaded brass inserts into the hull side of the backing block into the holes that match the seacock flange
  • Rigid 1/2" thickness provides secure installation but is flexible enough to conform to minor hull curvature
  • Will not swell or absorb moisture
  • Made from an environmentally friendly PVC foam specially formulated for marine applications

Specifications:

  • Construction: Bronze
  • Box Dimensions: 1"H x 7"W x 7"L WT: 0.45 lbs
  • UPC: 742985170155
Product form

Backing Block for 2" & 2-1/2" SeacocksFeatures: Each size fits multiple seacock sizes Press threaded brass inserts into the hull... Read more

SKU: CWR-74173
Barcode: 742985170155

3 in stock

$105.00$60.50

    • Price Match Guarantee
    • Free Shipping on orders over $200
    • Secure Checkout
    • Shipped today? Order within: Jul 21, 2026 15:00:00 -0400

    Description

    Backing Block for 2" & 2-1/2" Seacocks

    Features:

    • Each size fits multiple seacock sizes
    • Press threaded brass inserts into the hull side of the backing block into the holes that match the seacock flange
    • Rigid 1/2" thickness provides secure installation but is flexible enough to conform to minor hull curvature
    • Will not swell or absorb moisture
    • Made from an environmentally friendly PVC foam specially formulated for marine applications

    Specifications:

    • Construction: Bronze
    • Box Dimensions: 1"H x 7"W x 7"L WT: 0.45 lbs
    • UPC: 742985170155

    Recently viewed products

    © 2026 Safe Water, Powered by Safe Water

      • American Express
      • Apple Pay
      • Diners Club
      • Discover
      • Google Pay
      • Mastercard
      • PayPal
      • Shop Pay
      • Visa

      Login

      Forgot your password?

      Don't have an account yet?
      Create account